Improvement of the method of calculation of strength of the pressure hull of the underwater apparatus of the toroidal form, made by winding

Article Sidebar

pdf (Українська)
Published: Aug 11, 2020
DOI: https://doi.org/10.47049/2226-1893-2020-2-90-105
Keywords:
toroidal strong case, stress-strain state, hydrostatic pressure, fiberglass, carbon fiber, winding

Main Article Content

Е. Burdun
National University of Shipbuilding them. Admiral Makarov
S. Prystash
National University of Shipbuilding them. Admiral Makarov

Abstract

The problem of stress-strain state and evaluation of the strength of a hollow closed toroidal shell, which is made of a polymer composite material by winding, is investigated in the article. The method of calculating the stress-strain state and assessing the strength of hydrostatic compression of the strong body of a toroidal submarine has been improved, taking into account structural and technological factors of manufacturing by fiber winding (tape) of polymer composite materials and recommendations of the Bureau Veritas classification society on the evaluation of elastic characteristics properties of its components. Regularities of influence on the stress-strain state of the wound toroidal strong body of reinforcement schemes, geometrical parameters of the body, perspective types of reinforcing fillers and connectors, variable thickness and its averaging are obtained. It is established that failure to take into  account the structural and technological factors of the method of winding and the peculiarities of the calculation of composite materials and the use of simplified calculation methods leads to a reduction of stresses twice and an error in the dangerous direction. Strength constraints are accepted in the form of a combined Tsai-Wu or Hoffman test. The evaluation of technical and economic efficiency of high-strength fibrous materials for toroidal durable housings with strength limitations in  order to create rational in weight and technological terms housings depending on the depth of operation at the initial stage of device design. It is established that epoxyplastics based on medium modulus and high-strength carbon fibers are the most suitable for strong hulls of toroidal submarines.

Article Details

How to Cite
BurdunЕ., & Prystash, S. (2020). Improvement of the method of calculation of strength of the pressure hull of the underwater apparatus of the toroidal form, made by winding. Herald of the Odessa National Maritime University, (62), 99-105. https://doi.org/10.47049/2226-1893-2020-2-90-105
Issue
No 62 (2020): Herald of the Odessa National Maritime University
Section
Strength of ships and structures
Author Biographies

Е. Burdun, National University of Shipbuilding them. Admiral Makarov

Ph.D. Head of the Department «Design and manufacture of structures from composite materials»

S. Prystash, National University of Shipbuilding them. Admiral Makarov

Postgraduate of the Department «Design and production of structures from composite materials»

References

1. Burdun, E.T. Prystash, S.F., Heiko, S.P., Kopiika, S.V. (2019). Porivniannia metodiv otsinky efektyvnykh pruzhnykh kharakte-rystyk toroidalnoho mitsnoho korpusu pidvodnoho zasobu vykona-noho namotuvanniam voloknom Innovatsii v sudnobuduvanni ta okeanotekhnitsi: materialy VIII mizhnarodnoi naukovo-tekhnichnoi konferentsii. Mykolaiv: NUK, 2019 r. Р. 239-243 (in Russian).
2. Sizonenko, O., Burdun, E., Prystash, S. (2018) Peculiarities of stress-strain state of toroidal pressure hull, made by winding. International journal for science, technics and innovations for the industry. Machines, Technologies, Materials, Year ХII Issue 6, рр. 240-243.
3. Sizonenko, O., Burdun, E., Prystash, S. (2018) Peculiarities of stress-strain state of toroidal pressure hull, made by spiral win-ding. International journal for science, technics and innova- tions for the industry. Machines, Technologies, Materials, PRINT ISSN 1313-0226, ISSN WEB 1314-507X, Year ХII, Issue 11, рр. 466-469.
4. Prystash, S.F., Burdun, Ye.T. (2017.) Metod rozrakhunku mitsnoho korpusu pidvodnoho aparatu v formi toru, vykonanoho namotuvanniam. Visnyk Odeskoho natsionalnoho morskoho universytetu. Odesa, № 4 (53). pp. 152-163. (in Russian).
5. Hrebeniuk, S.N., Sysoev, Yu.A., Sysoev, Yu.N (2010) Napriazhen- no-deformyrovannoe sostoianye toroydalnыkh obolochek. Visnyk Zaporizkoho natsionalnoho universytetu, № 2. Р. 24-28. (in Russian).
6. Ambarcumjan, S.A. (1974) Obshhaja teorija anizotropnyh obolo-chek / S.A. Ambarcumjan. Moskva: NAUKA, 448 p. (in Russian).
7. Bureau Veritas: Hull in Composite Materials and Plywood, Mate-rial Approval, Design Principles, Construction and Survey. March 2012 / Rule Note NR 546 DT R00 E http://www. veristar. com/ portal/veristarinfo/detail?content-id=/repository/collaboration/ sites%20content/live/veristarinfo/vi-content-avigation/genera-linfo/ giRulesRegulations/bvRules/yachtsrules).
8. Burdun, Y.T. Kreptiuk, A.V. (2014) Rational designing of compo-site toroidal pressure hull for ocean engineering. Vestnyk Astrakhanskoho hosudarstvennoho tekhnycheskoho unyversyteta. Seryia: Morskaia tekhnyka y tekhnolohyia. Astrakhan: AHTU. № 2. Р. 27-36. (in Russian).
9. Korn, G. Korn, T. (1968) Spravochnik po matematike dlja nauchnyh rabotnikov i inzhenerov. M.: Nauka, 720 p. (in Russian).
10. Grekov, V.M., Druzhilovskij, B.V., Rjabov, V.M. (2010) Ocenka tehniko-jekonomicheskoj jeffektivnosti primenenija vysokprochnyh materialov dlja korpusov podvodnoj tehniki. Trudy CNII im. akad. A.N. Krylova. Sankt-Peterburg: CNII im. akad. Krylova, № 56 (340). Р. 187-194. (in Russian).